At first glance a no brainer, better than anything I could buy local at Home Depot / Lowes or a hard ware store.

But how old is too old? Two remaining ropes from my caving days are about 33 years old. Retired from caving in the late 80's and though rarely used are used hard when they are. Safety rope when felling trees for fire wood so they have been jerked on pretty hard, especially back when my skid steer loader still ran.

Wanting to put up a swing for our grand daughter (and us adults ) so it needs to be safe. Had one for our kids at our old place that was incredibly fun. Horizontal tire with three large eye bolts, straps going up to meet the rope and mounted on a hill side! Had to take it down because we could not keep neighbors kids off of it. Never got around to putting it back up after we moved (to a more rural location) because we could not find a spot that would duplicate the old one.

This round will be on flat ground for safety. Not only our grand daughter, but my wife's 76 year old mother is eagerly awaiting its completion

Oh, will PMI still test a chunk of their on rope for free? Back in the day they would, seems like it was 8 or 10 feet minimun so it could be rapped around a drum at both ends.

Unless I can find some far younger retired rope will most likely use chain for the future 'adult' swing. Thanks for the suggestion! Out of time for meeting our step grand daughter for the first time next weekend so used two strands of ~33 year old PMI. Did not break with my 190 LBs so it should be safe for a nine year old. Bet even one strand is stronger than the six strands of brand new 1/2 braided from Lowes that split down for the last four feet.